horse racing
US /ˈhɔːrs ˌreɪ.sɪŋ/
UK /ˈhɔːrs ˌreɪ.sɪŋ/

1.
競馬
the sport of racing horses, especially thoroughbreds, often with betting involved
:
•
He loves going to the track to watch horse racing.
彼は競馬を見に競馬場に行くのが大好きだ。
•
The Kentucky Derby is a famous horse racing event.
ケンタッキーダービーは有名な競馬イベントだ。